makemkv.sh

#!/bin/sh

if [[ "x$1" = "x" ]]; then
  echo "Usage:"
  echo "  $0 <searchpath>"
  exit 1
fi

find "$(readlink -f "$1")" -type d -name STREAM | while read M ; do
    cd "$M"

    # Determine name of the Movie
    NAME="$(echo "$M" | sed "s_.*/\([^/]*\)/STREAM_\1_")"

    # Find all parts that will be merged
    FILES="$(echo *.m2ts | sed "s_ \([^ ]*\)_ +\1_g")"
    
    # Define output filename
    OUTPUT="../$NAME.mkv"
    
    # Ignore preexisting files
    if [[ -e "$OUTPUT" ]]; then
        echo "File '$OUTPUT' exists. ignoring ..."
        continue
    fi

    # Print what would be executed, uncomment the second line to execute
    echo "mkvmerge $FILES -o $OUTPUT"
    #mkvmerge $FILES -o "$OUTPUT"
done